Can you give some details about the choke which you added to the feedline? Ferrite mix, number of turns, size of core? At my receive-only location I have a very high level of RFI/EMI to deal with. Co
I used 8 turns of RG-6 through a stack of four cores ... two of the cores were FT-140-77 cores. The other two are probably something like FT-140-61 or FT-140-43. On 160m the unknown cores have a good
On the loop I recently mentioned, the feedline is coupled to the loop matching circuit through a MiniCircuits T1-1 transformer. This gives better feedline isolation that you can get with any choke th
Thanks for the choke details, I'll make a couple using #31 ferrite torides, I don't know if binocular cores are manufactured with #31? Yes, Jim Brown's RFI ferrite papers should be read by all of us!
Thank you and I will check out the MiniCircuits catalogue. Colman Ahern. Berkeley. _______________________________________________ _______________________________________________ TowerTalk mailing li